Re: Sender address rejected: Domain not found
Ruben Safir: > > me@localhost:~ $ host server.cointalk.com > > Host server.cointalk.com not found: 3(NXDOMAIN) > > > > Postfix rejects the mail because it cannot resolve the sender domain. > > Thanks! I don't run cointalk.com But I will pass this info on They probably should be sending mail as usern...@cointalk.com, instead of using the name of an internal machine that isn't reachable from other networks. Wietse
Re: Sender address rejected: Domain not found
On Tue, Jan 05, 2021 at 10:02:08AM +0100, Ansgar Wiechers wrote: > On 2021-01-05 Ruben Safir wrote: > > Any clue why this is happening from the cointalk.com domain > > I am locked out of the forum :) > > > > 2021-01-05T03:11:38.999012-05:00 www2 postfix/smtpd[26176]: NOQUEUE: > > reject: RCPT from 23-111-188-110.static.hvvc.us[23.111.188.110]: 450 > > 4.1.8 : Sender address rejected: Domain not > > found; from= to= > > proto=ESMTP helo= > > www2:~ # grep cointalk /var/log/mail|less > > > > > > www2:~ # dig mx ng...@server.cointalk.com > > > > ; <<>> DiG 9.9.2 <<>> mx ng...@server.cointalk.com > > ;; global options: +cmd > > ;; Got answer: > > ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 58851 > > ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 > > > > ;; OPT PSEUDOSECTION: > > ; EDNS: version: 0, flags:; udp: 4096 > > ;; QUESTION SECTION: > > ;nginx\@server.cointalk.com.IN MX > > Your lookup is incorrect. The domain in question is server.cointalk.com, > not ng...@server.cointalk.com. The latter is the sender e-mail address > (localpart@domain). > > The cause of the problem, however, is that there is no A record for > server.cointalk.com: > > me@localhost:~ $ host server.cointalk.com > Host server.cointalk.com not found: 3(NXDOMAIN) > > Postfix rejects the mail because it cannot resolve the sender domain. Thanks! I don't run cointalk.com But I will pass this info on > > Regards > Ansgar Wiechers > -- > "Abstractions save us time working, but they don't save us time learning." > --Joel Spolsky -- So many immigrant groups have swept through our town that Brooklyn, like Atlantis, reaches mythological proportions in the mind of the world - RI Safir 1998 http://www.mrbrklyn.com DRM is THEFT - We are the STAKEHOLDERS - RI Safir 2002 http://www.nylxs.com - Leadership Development in Free Software http://www2.mrbrklyn.com/resources - Unpublished Archive http://www.coinhangout.com - coins! http://www.brooklyn-living.com Being so tracked is for FARM ANIMALS and extermination camps, but incompatible with living as a free human being. -RI Safir 2013
Re: Sender address rejected: Domain not found
Ruben Safir: > I'm sorry to bother everyone > > Any clue why this is happening from the cointalk.com domain > I am locked out of the forum :) > > 2021-01-05T03:11:38.999012-05:00 www2 postfix/smtpd[26176]: NOQUEUE: > reject: RCPT from 23-111-188-110.static.hvvc.us[23.111.188.110]: 450 > 4.1.8 : Sender address rejected: Domain not > found; from= to= > proto=ESMTP helo= > www2:~ # grep cointalk /var/log/mail|less > > > www2:~ # dig mx ng...@server.cointalk.com $ dig mx server.cointalk.com ; <<>> DiG 9.11.25-RedHat-9.11.25-2.fc32 <<>> mx server.cointalk.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 25012 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 Wietse
Re: Sender address rejected: Domain not found
On 2021-01-05 Ruben Safir wrote: > Any clue why this is happening from the cointalk.com domain > I am locked out of the forum :) > > 2021-01-05T03:11:38.999012-05:00 www2 postfix/smtpd[26176]: NOQUEUE: > reject: RCPT from 23-111-188-110.static.hvvc.us[23.111.188.110]: 450 > 4.1.8 : Sender address rejected: Domain not > found; from= to= > proto=ESMTP helo= > www2:~ # grep cointalk /var/log/mail|less > > > www2:~ # dig mx ng...@server.cointalk.com > > ; <<>> DiG 9.9.2 <<>> mx ng...@server.cointalk.com > ;; global options: +cmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 58851 > ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 > > ;; OPT PSEUDOSECTION: > ; EDNS: version: 0, flags:; udp: 4096 > ;; QUESTION SECTION: > ;nginx\@server.cointalk.com.IN MX Your lookup is incorrect. The domain in question is server.cointalk.com, not ng...@server.cointalk.com. The latter is the sender e-mail address (localpart@domain). The cause of the problem, however, is that there is no A record for server.cointalk.com: me@localhost:~ $ host server.cointalk.com Host server.cointalk.com not found: 3(NXDOMAIN) Postfix rejects the mail because it cannot resolve the sender domain. Regards Ansgar Wiechers -- "Abstractions save us time working, but they don't save us time learning." --Joel Spolsky
AW: Sender address rejected: Domain not found
Hi, looks like a simple DNS error to me. In order for mails from @server.cointalk.com to be valid, that domain must exist as A records in DNS. You could whitelist *.cointalk.com in postfix config, but I suggest fixing the DNS. Greets, Ludi -Ursprüngliche Nachricht- Von: owner-postfix-us...@postfix.org Im Auftrag von Ruben Safir Gesendet: Dienstag, 5. Januar 2021 09:19 An: postfix-users@postfix.org Betreff: Sender address rejected: Domain not found I'm sorry to bother everyone Any clue why this is happening from the cointalk.com domain I am locked out of the forum :) 2021-01-05T03:11:38.999012-05:00 www2 postfix/smtpd[26176]: NOQUEUE: reject: RCPT from 23-111-188-110.static.hvvc.us[23.111.188.110]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo= www2:~ # grep cointalk /var/log/mail|less www2:~ # dig mx ng...@server.cointalk.com ; <<>> DiG 9.9.2 <<>> mx ng...@server.cointalk.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 58851 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;nginx\@server.cointalk.com.IN MX ;; AUTHORITY SECTION: cointalk.com. 180 IN SOA ns0.dnsmadeeasy.com. dns.dnsmadeeasy.com. 2008010139 43200 3600 1209600 180 ;; Query time: 321 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Tue Jan 5 03:18:18 2021 ;; MSG SIZE rcvd: 110 -- So many immigrant groups have swept through our town that Brooklyn, like Atlantis, reaches mythological proportions in the mind of the world - RI Safir 1998 http://www.mrbrklyn.com DRM is THEFT - We are the STAKEHOLDERS - RI Safir 2002 http://www.nylxs.com - Leadership Development in Free Software http://www2.mrbrklyn.com/resources - Unpublished Archive http://www.coinhangout.com - coins! http://www.brooklyn-living.com Being so tracked is for FARM ANIMALS and extermination camps, but incompatible with living as a free human being. -RI Safir 2013
Sender address rejected: Domain not found
I'm sorry to bother everyone Any clue why this is happening from the cointalk.com domain I am locked out of the forum :) 2021-01-05T03:11:38.999012-05:00 www2 postfix/smtpd[26176]: NOQUEUE: reject: RCPT from 23-111-188-110.static.hvvc.us[23.111.188.110]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo= www2:~ # grep cointalk /var/log/mail|less www2:~ # dig mx ng...@server.cointalk.com ; <<>> DiG 9.9.2 <<>> mx ng...@server.cointalk.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 58851 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;nginx\@server.cointalk.com.IN MX ;; AUTHORITY SECTION: cointalk.com. 180 IN SOA ns0.dnsmadeeasy.com. dns.dnsmadeeasy.com. 2008010139 43200 3600 1209600 180 ;; Query time: 321 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Tue Jan 5 03:18:18 2021 ;; MSG SIZE rcvd: 110 -- So many immigrant groups have swept through our town that Brooklyn, like Atlantis, reaches mythological proportions in the mind of the world - RI Safir 1998 http://www.mrbrklyn.com DRM is THEFT - We are the STAKEHOLDERS - RI Safir 2002 http://www.nylxs.com - Leadership Development in Free Software http://www2.mrbrklyn.com/resources - Unpublished Archive http://www.coinhangout.com - coins! http://www.brooklyn-living.com Being so tracked is for FARM ANIMALS and extermination camps, but incompatible with living as a free human being. -RI Safir 2013
